Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20]
Xanthomonas citri pv. citri IXcc) and X. citri pv. aurantifolii (Xca), are causal agents of Citrus Bacterial Canker ICBC) a severe disease that requires costly control measures and primarily causes defoliation and fruit blemish and drop. Xcc and Xca are quarantine pathogens for UE, net known to occur in the Mediterranean region. The probability of their entry, via import of ornamental rutaceous plants, through bath the commercial trade and passenger pathways, is rated as likely by EFSA (2014). To provide useful information for the pest risk assessment, 25 ornamental rutaceous plants in the genera Atalantia, Balsamocitrus, Clausena, Eremocitrus, Glycosmis, Melicope, Microcitrus, Murraya, Vespris, not covered by Directive 2000/ 29EC, as well as Citrus and Fortune/la, were tested for resistance to Xcc (pathotype A, A*, Aw) and Xca (pathotype Band C) strains in controlled environment by a detached leaf assay. Nine plant species were presumptively classified as non-host, among them Murraya paniculata. Only M. ovatifoliolata and Eremocitrus glauca were susceptible to all pathotypes. The remaining species were susceptible at least to one of the pathotype A strain. Bacterial population densities ranged from 103 to 106 cfu mL-1 and 107 to 109 cfu mL-1 in plants showing HR or no response and typical CBC lesions, respectively. Crystal violet staining showed aggregation of citrus canker strains on M. paniculata leaf similar to that on citrus species but different to that found for a non-citrus Xanthomonas. Moreover, a de novo sequencing of M. paniculata genome, already completed, will serve for RNAseq studies on bath Murraya species.
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dig-cirad-fr-5872142022-03-30T12:03:45Z http://agritrop.cirad.fr/587214/ http://agritrop.cirad.fr/587214/ Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20]. Licciardello Grazia, Pruvost Olivier, Robene Isabelle, Cubero Jaime, Redondo C., Caruso A., Licciardello Concetta, Caruso Paola, Catara Vittoria. 2017. In : 15th Congress of the Mediterranean Phytopathological Union: Plant health sustaining Mediterranean ecosystems Abstracts book. MPU, Universidad de Córdoba. Cordoba : MPU, Résumé, 57. 15th Congress of the Mediterranean Phytopathological Union, Cordoba, Espagne, 20 Juin 2017/23 Juin 2017. Researchers Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] Licciardello, Grazia Pruvost, Olivier Robene, Isabelle Cubero, Jaime Redondo, C. Caruso, A. Licciardello, Concetta Caruso, Paola Catara, Vittoria eng 2017 MPU 15th Congress of the Mediterranean Phytopathological Union: Plant health sustaining Mediterranean ecosystems Abstracts book H20 - Maladies des plantes Xanthomonas citri pv. citri IXcc) and X. citri pv. aurantifolii (Xca), are causal agents of Citrus Bacterial Canker ICBC) a severe disease that requires costly control measures and primarily causes defoliation and fruit blemish and drop. Xcc and Xca are quarantine pathogens for UE, net known to occur in the Mediterranean region. The probability of their entry, via import of ornamental rutaceous plants, through bath the commercial trade and passenger pathways, is rated as likely by EFSA (2014). To provide useful information for the pest risk assessment, 25 ornamental rutaceous plants in the genera Atalantia, Balsamocitrus, Clausena, Eremocitrus, Glycosmis, Melicope, Microcitrus, Murraya, Vespris, not covered by Directive 2000/ 29EC, as well as Citrus and Fortune/la, were tested for resistance to Xcc (pathotype A, A*, Aw) and Xca (pathotype Band C) strains in controlled environment by a detached leaf assay. Nine plant species were presumptively classified as non-host, among them Murraya paniculata. Only M. ovatifoliolata and Eremocitrus glauca were susceptible to all pathotypes. The remaining species were susceptible at least to one of the pathotype A strain. Bacterial population densities ranged from 103 to 106 cfu mL-1 and 107 to 109 cfu mL-1 in plants showing HR or no response and typical CBC lesions, respectively. Crystal violet staining showed aggregation of citrus canker strains on M. paniculata leaf similar to that on citrus species but different to that found for a non-citrus Xanthomonas. Moreover, a de novo sequencing of M. paniculata genome, already completed, will serve for RNAseq studies on bath Murraya species. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/587214/1/Licciardello%20MPU.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html |
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H20 - Maladies des plantes H20 - Maladies des plantes Licciardello, Grazia Pruvost, Olivier Robene, Isabelle Cubero, Jaime Redondo, C. Caruso, A. Licciardello, Concetta Caruso, Paola Catara, Vittoria Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
description |
Xanthomonas citri pv. citri IXcc) and X. citri pv. aurantifolii (Xca), are causal agents of Citrus Bacterial Canker ICBC) a severe disease that requires costly control measures and primarily causes defoliation and fruit blemish and drop. Xcc and Xca are quarantine pathogens for UE, net known to occur in the Mediterranean region. The probability of their entry, via import of ornamental rutaceous plants, through bath the commercial trade and passenger pathways, is rated as likely by EFSA (2014). To provide useful information for the pest risk assessment, 25 ornamental rutaceous plants in the genera Atalantia, Balsamocitrus, Clausena, Eremocitrus, Glycosmis, Melicope, Microcitrus, Murraya, Vespris, not covered by Directive 2000/ 29EC, as well as Citrus and Fortune/la, were tested for resistance to Xcc (pathotype A, A*, Aw) and Xca (pathotype Band C) strains in controlled environment by a detached leaf assay. Nine plant species were presumptively classified as non-host, among them Murraya paniculata. Only M. ovatifoliolata and Eremocitrus glauca were susceptible to all pathotypes. The remaining species were susceptible at least to one of the pathotype A strain. Bacterial population densities ranged from 103 to 106 cfu mL-1 and 107 to 109 cfu mL-1 in plants showing HR or no response and typical CBC lesions, respectively. Crystal violet staining showed aggregation of citrus canker strains on M. paniculata leaf similar to that on citrus species but different to that found for a non-citrus Xanthomonas. Moreover, a de novo sequencing of M. paniculata genome, already completed, will serve for RNAseq studies on bath Murraya species. |
format |
conference_item |
topic_facet |
H20 - Maladies des plantes |
author |
Licciardello, Grazia Pruvost, Olivier Robene, Isabelle Cubero, Jaime Redondo, C. Caruso, A. Licciardello, Concetta Caruso, Paola Catara, Vittoria |
author_facet |
Licciardello, Grazia Pruvost, Olivier Robene, Isabelle Cubero, Jaime Redondo, C. Caruso, A. Licciardello, Concetta Caruso, Paola Catara, Vittoria |
author_sort |
Licciardello, Grazia |
title |
Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
title_short |
Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
title_full |
Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
title_fullStr |
Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
title_full_unstemmed |
Assessment of the host status of ornamental rutaceous species to Xanthomonas citri pathovars causing Citrus Bacterial Canker. [O.20] |
title_sort |
assessment of the host status of ornamental rutaceous species to xanthomonas citri pathovars causing citrus bacterial canker. [o.20] |
publisher |
MPU |
url |
http://agritrop.cirad.fr/587214/ http://agritrop.cirad.fr/587214/1/Licciardello%20MPU.pdf |
work_keys_str_mv |
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